But the talk of the day was a late-race battle between Kyle Busch and Brad Keselowski, which could carry over to Sunday's Hollywood Casino 400.

Keselowski and Busch were battling for second place behind Kenseth on lap 188 of 200 when Busch made contact with Keselowski, sending him into the wall and out of the race. Busch went on to finish fourth while Keselowski finished 28th.

The No. 22 car of Keselowski and the 54 of Busch are one-two in the owner point standings, and the late-race incident allowed Busch to turn a 34-point deficit to just five with four races remaining.

Saturday's incident continued a long-running feud between the two drivers, who have combined for 21 wins this season in the Nationwide Series (11 by Keselowski).

“(Kyle) didn't want me to race him hard, so he just dumped me down the straightaway,” Keselowski said. “I think it's pretty self-explanatory and I'm not going to stand for it.”

Keselowski warned of possible payback in Sunday's Sprint Cup race. Keselowski won the 2012 Sprint Cup championship before not making the Chase this season while Busch is currently third in points, just 12 points out of the lead.

“He's got a lot more to lose than I do,” Keselowski said. “I guess that's the only good thing about not being in the Chase.”

Busch denied wrecking Keselowski on purpose.

“It was hard racing,” Busch said. “There were a lot of moments where maybe I felt a little crowded, but the contact there that ultimately ended it, I just got real tight off of (turn) four. I've been battling tight underneath them and behind them and everything else.

“I thought I had a run and I tried to stay in the gas so I could get a run on him. I got too tight, got inside his wake and got too close to him and spun him out.”

Keselowski was in no mood to accept that explanation.

“I got wrecked by a dirty driver,” Keselowski said. “There is no other way of putting it. It's not going to last, I can tell you that. I feel bad for the guys next to me that are going to have to fix his stuff.

“That is going to be part of racing, and they are going to have to deal with it.”

Busch was asked if he was concerned bout Keselowski seeking retribution in Sunday's race.

“If he wants to take it over to the other side of the garage area then whatever,” Busch said. “But you know what, I've got more class than that.”

Kenseth had to sweat out whether he had enough fuel at the end of Saturday's race and he had minimal front end damage, but the veteran led three times for 38 laps, including the last 35 laps of the race to win by just under a second over Paul Menard.

Kenseth won his second Nationwide race of the year and his 28th in the series. He is sixth on the all-time series win list.

“It wasn't easy,” said Kenseth, who leads the Sprint Cup standings by eight points over Jimmie Johnson. “Matt (Lucas, his crew chief) and these guys did a great job with the car.

“(We've) had a lot of speed ever since we got here. We made a good (pit) call there and had enough gas to make it to the end, so it was a great day. It feels good to get the win.”

Regan Smith finished third while Busch and Justin Allgaier rounded out the top five.

Austin Dillon finished sixth and moved into the points lead with four Nationwide races remaining. Sam Hornish Jr. started the race with a four-point lead over Dillon but finished 17th.

Dillon now has an eight-point advantage heading into next week's race at Charlotte Motor Speedway.